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Orthoptera, Tettigoniidae)
3924 The Journal ot Experimental Biology 214, 3924-3934 © 2011 Published by The Company of Biologists Ltd doi:10,1242/)eb, 057901 RESEARCH ARTICLE Neuronal correlates of a preference for leading signals in the synchronizing bushcricket Mecopoda elongata (Orthoptera, Tettigoniidae) M. E. Siegert\ H. Römer\ R. Hashim^and M. Hartbauer^* ^Department of Zoology, Karl-Franzens University Graz, Universitätsplatz 2, 8010 Graz, Austria and ^Institute for Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia *Author for correspondence (manfred,hartbauer@uni-graz,at) Accepted 7 September 2011 SUMMARY Acoustically interacting males of the tropical katydid Mecopoda elongata synchronize their chirps imperfectly, so that one male calls consistently earlier in time than the other. In choice situations, females prefer the ieader signai, and it has been suggested that a neuronal mechanism based on directionai hearing may be responsibie for the asymmetric, stronger representation of the ieader signal in receivers. Here, we investigated the potential mechanism in a pair of interneurons (TNI neuron) of the afferent auditory pathway, known for its contraiaterai inhibitory input in directionai hearing. In this interneuron, conspecific signals are reliabiy encoded under natural conditions, despite high background noise ievels. Unilateral presentations of a conspecific chirp elicited a TN1 response where each suprathreshold syllable in the chirp was reliably copied In a phase-locked fashion. Two identical chirps broadcast with a 180deg spatial separation resulted in a strong suppression of the response to the follower signal, when the time delay was 20 ms or more. Muting the ear on the leader side fuiiy restored the response to the foilower signai compared with uniiaterai controis. -
An Inventory of Short Horn Grasshoppers in the Menoua Division, West Region of Cameroon
AGRICULTURE AND BIOLOGY JOURNAL OF NORTH AMERICA ISSN Print: 2151-7517, ISSN Online: 2151-7525, doi:10.5251/abjna.2013.4.3.291.299 © 2013, ScienceHuβ, http://www.scihub.org/ABJNA An inventory of short horn grasshoppers in the Menoua Division, West Region of Cameroon Seino RA1, Dongmo TI1, Ghogomu RT2, Kekeunou S3, Chifon RN1, Manjeli Y4 1Laboratory of Applied Ecology (LABEA), Department of Animal Biology, Faculty of Science, University of Dschang, P.O. Box 353 Dschang, Cameroon, 2Department of Plant Protection, Faculty of Agriculture and Agronomic Sciences (FASA), University of Dschang, P.O. Box 222, Dschang, Cameroon. 3 Département de Biologie et Physiologie Animale, Faculté des Sciences, Université de Yaoundé 1, Cameroun 4 Department of Biotechnology and Animal Production, Faculty of Agriculture and Agronomic Sciences (FASA), University of Dschang, P.O. Box 222, Dschang, Cameroon. ABSTRACT The present study was carried out as a first documentation of short horn grasshoppers in the Menoua Division of Cameroon. A total of 1587 specimens were collected from six sites i.e. Dschang (265), Fokoue (253), Fongo – Tongo (267), Nkong – Ni (271), Penka Michel (268) and Santchou (263). Identification of these grasshoppers showed 28 species that included 22 Acrididae and 6 Pyrgomorphidae. The Acrididae belonged to 8 subfamilies (Acridinae, Catantopinae, Cyrtacanthacridinae, Eyprepocnemidinae, Oedipodinae, Oxyinae, Spathosterninae and Tropidopolinae) while the Pyrgomorphidae belonged to only one subfamily (Pyrgomorphinae). The Catantopinae (Acrididae) showed the highest number of species while Oxyinae, Spathosterninae and Tropidopolinae showed only one species each. Ten Acrididae species (Acanthacris ruficornis, Anacatantops sp, Catantops melanostictus, Coryphosima stenoptera, Cyrtacanthacris aeruginosa, Eyprepocnemis noxia, Gastrimargus africanus, Heteropternis sp, Ornithacris turbida, and Trilophidia conturbata ) and one Pyrgomorphidae (Zonocerus variegatus) were collected in all the six sites. -
African Crickets (Gryllidae). 5. East and South African Species of Modicogryllus and Several Related Genera (Gryllinae, Modicogryllini)
Proceedings of the Academy of Natural Sciences of Philadelphia 136: 67-97, 1984 African Crickets (Gryllidae). 5. East and South African Species of Modicogryllus and Several Related Genera (Gryllinae, Modicogryllini) DANIEL OTTE Academy of Natural Sciences of Philadelphia 19th and the Parkway, Philadelphia, PA, 19103 WILLIAM CADE Biological Sciences, Brock University St. Catharines, Ontario L25 3AI ABSTRACT.-This paper is part of a series of preliminarypapers on the African cricket fauna. We discuss all nominal species of Modicogryllus from the Afrotropicslisted by Chopard(1967) in his catalogue, as well as fourteen new species discovered in eastern and southernAfrica. We have examined and comparedthe types of all species. Nine nominal species are moved out of this genus (see list below). Five additionalAfrican species have not been studied, either because they are from northAfrica or because the types are females; their generic status remains uncertain.Two species are moved into Comidogryllus,previously known only from Australasia. One species, royi, is moved to a new genus Modicoides. [Africa, crickets, Gryllidae, Modicogryllini, morphology, new taxa, Orthoptera,songs, systematics] This paper began when we attemptedto de- two species of Comidogryllus, and one of the termine which Modicogryllus species we had new genus Modicoides. recorded and collected in eastern and southern The paper is merely an interim reporton the Africa. Since the descriptions of previously present status of these genera. It is highly prob- described species rarely included the necessary able that numerousadditional species will even- diagnostic characters it became necessary to tually be discovered. study all of the types from the Afrotropical We have not examined many of the speci- zone. -
Comparative FISH Analysis in Five Species of Eyprepocnemidine
Heredity (2003) 90, 377–381 & 2003 Nature Publishing Group All rights reserved 0018-067X/03 $25.00 www.nature.com/hdy Comparative FISH analysis in five species of Eyprepocnemidine grasshoppers J Cabrero1, A Bugrov2,3, E Warchałowska-S´liwa4,MDLo´pez-Leo´n1, F Perfectti1 and JPM Camacho1 1Departamento de Gene´tica, Universidad de Granada, 18071 Granada, Spain; 2Institute of Systematics and Ecology of Animals, Siberian Branch of Russian Academy of Sciences, 630091 Novosibirsk, Russia; 3Novosibirsk State University, 630090 Novosibirsk, Russia; 4Department of Experimental Zoology, Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, 31-016 Krako´w, Poland The chromosomal localization of ribosomal DNA, and a species, however, lacked the 180 bp tandem repeat, and 180 bp satellite DNA isolated from Spanish Eyprepocnemis showed rDNA clusters in one (S9 in Thisoicetrinus pteros- plorans specimens, has been analysed in five Eyprepocne- tichus), two (S9 and S10 in Eyprepocnemis unicolor;M8 and midinae species collected in Russia and Central Asia. S11 in Heteracris adspersa), or three (S9,S10, and S11 in Caucasian E. plorans individuals carried each of the two Shirakiacris shirakii) chromosome pairs. The implications of DNAs, but the rDNA was limited to only two chromosomes these findings for the evolution of these two chromosome (S9 and S11) in sharp contrast to Spanish specimens that markers in this group of species are discussed. show 4–8 rDNA clusters and to Moroccan specimens which Heredity (2003) 90, 377–381. doi:10.1038/sj.hdy.6800255 carry rDNA in almost all chromosomes. The four remaining Keywords: rDNA; satDNA; heterochromatin; grasshopper; nucleolus organizer region Introduction change (Maggini et al, 1991), and the amplification of minor rDNA loci (Dubcovsky and Dvo¨rak, 1995). -
Adelosgryllus Rubricephalus: a New Genus and Species of Cricket (Orthoptera: Phalangopsidae)
May - June 2004 327 SYSTEMATICS, MORPHOLOGY AND PHYSIOLOGY Adelosgryllus rubricephalus: A New Genus and Species of Cricket (Orthoptera: Phalangopsidae) ALEJO MESA1 AND EDISON ZEFA2 1Depto. Biologia, Inst. Biociências, Universidade Estadual Paulista, Av. 24-A, 1515, 13506-900, Bela Vista, Rio Claro, SP 2Faculdade União das Américas, Av. Tarquinio Joslin dos Santos, s/n, Jd. Universitário, Foz do Iguaçu, PR Neotropical Entomology 33(3):327-332 (2004) Adelosgryllus rubricephalus: Um Novo Gênero e Espécie de Grilo (Orthoptera: Phalangopsidae) RESUMO - Um novo gênero e espécie de grilo falangopsídeo Adelosgryllus rubricephalus é descrito. Ilustrações de espécimes macho e fêmea e a descrição dos escleritos fálicos, assim como os cromossomos e a distribuição geográfica conhecida são relatados. Uma discussão sobre a posição taxonômica desse grilo dentro da família Phalangopsidae é incluída. PALAVRAS-CHAVE: Grylloidea, morfologia, esclerito fálico, cromossomo ABSTRACT - Adelosgryllus rubricephalus, a new genus and species of phalangopsid cricket are described. Illustrations of male and female specimens as well as descriptions of phallic sclerites, chromosomes and geographical known distribution are furnished. A discussion on the species taxonomic status of this cricket within the family is also included. KEY WORDS: Grylloidea, morphology, phallic sclerite, chromosome During the last twenty years few more than twenty Results specimens of this elusive species were obtained. Some of them were collected as nymphs and completed their Generic Characters. Ocelli absent. Males with tegmen development in the laboratory, though some of them died covering approximately half the abdomen (Fig. 1) with Cu2 before reaching the adult stage. The species was found vein provided with pars stridens (Fig. 2b). Lateral field of throughout a wide brazilian territory, including the states of the tegmen with three branching veins (Fig 2b). -
(Orthoptera) and Their Phylogenetic Implications Within Tetrigoidea
Mitochondrial genomes of eight Scelimeninae species (Orthoptera) and their phylogenetic implications within Tetrigoidea Ran Li1, Xiaoli Ying1, Weian Deng2, Wantao Rong2 and Xiaodong Li2 1 College of Life Sciences, Nanjing Normal University, Nanjing, China 2 School of Chemistry and Bioengineering, Hechi University, Yizhou, China ABSTRACT Scelimeninae is a key member of the pygmy grasshopper community, and an important ecological indicator. No mitochondrial genomes of Scelimeninae have been reported to date, and the monophyly of Scelimeninae and its phylogenetic relationship within Tetrigidae is still unclear. We sequenced and analyzed eight nearly complete mitochondrial genomes representing eight genera of Scelimeninae. These mitogenomes ranged in size from 13,112 to 16,380 bp and the order of tRNA genes between COII and ATP8 was reversed compared with the ancestral order of insects. The protein-coding genes (PCGs) of tetrigid species mainly with the typical ATN codons and most terminated with complete (TAA or TAG) stop codons. Analyses of pairwise genetic distances showed that ATP8 was the least conserved gene within Tetrigidae, while COI was the most conserved. The longest intergenic spacer (IGS) region in the mitogenomes was always found between tRNASer(UCN) and ND1. Additionally, tandem repeat units were identified in the longest IGS of three mitogenomes. Maximum likelihood (ML) and Bayesian Inference (BI) analyses based on the two datasets supported the monophyly of Tetriginae. Scelimeninae was classified as a non-monophyletic subfamily. -
Orthoptera-Tettigoniidae)
_??_1994 The Japan Mendel Society Cytologia 59 : 285-287, 1994 Karyotypes of Two Indian Grasshoppers of Mecopodinae (Orthoptera-Tettigoniidae) N. V. Aswathanarayana* and S. K. Ashwath Deprtment of Studies in Zoology, University of Mysore, Manasa Gangotri , Mysore, 570 006, India Accepted June 2, 1994 Variation in the chromosome number and form in closely related groups are of great interest and importance in the karyotype evolution. Robertsonian rearrangements and peri centric inversions are both considered to be the principle modes of chromosomal change in animals. (Imai et al. 1977). There are instances where the karyotypes are relatively stable as in the Acrididae. However, in the related family of Tettigonidae there is a wide range of variation in the diploid numbers from 12 to 39 (Ferreira 1977, Ashwath 1981, Aswathanara yana and Ashwath 1985). In the present paper, the karyotype diversity in two species of the less studied subgroup Mecopodiane is described and discussed. Material and methods A total of 29 males of Mecopoda elongata and 27 males of Mecopoda sp. were collected in and around Mysore (S. W. India) for karyological studies. The chromosome preparations were made from testes as well as from hepatic caecae adopting the method of Imai et al. (1977). The C-banding was induced applying technique of Summer (1972) with minor modifications. Observations A. Karyotype: (1) Mecopoda elongata: The mitotic metaphases from hepatic caecae show 29 chromosomes in the males (2n= 28+XO). The karyotype possesses 8 pairs of metacentrics of which one pair is large (chrm. 1) and others are smaller in size. Of the other 6 pairs, 5 pairs are subacrocentric having one large pair (chrm. -
The Transcriptomic and Genomic Architecture of Acrididae Grasshoppers
The Transcriptomic and Genomic Architecture of Acrididae Grasshoppers Dissertation To Fulfil the Requirements for the Degree of “Doctor of Philosophy” (PhD) Submitted to the Council of the Faculty of Biological Sciences of the Friedrich Schiller University Jena by Bachelor of Science, Master of Science, Abhijeet Shah born on 7th November 1984, Hyderabad, India 1 Academic reviewers: 1. Prof. Holger Schielzeth, Friedrich Schiller University Jena 2. Prof. Manja Marz, Friedrich Schiller University Jena 3. Prof. Rolf Beutel, Friedrich Schiller University Jena 4. Prof. Frieder Mayer, Museum für Naturkunde Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin 5. Prof. Steve Hoffmann, Leibniz Institute on Aging – Fritz Lipmann Institute, Jena 6. Prof. Aletta Bonn, Friedrich Schiller University Jena Date of oral defense: 24.02.2020 2 Table of Contents Abstract ........................................................................................................................... 5 Zusammenfassung............................................................................................................ 7 Introduction ..................................................................................................................... 9 Genetic polymorphism ............................................................................................................. 9 Lewontin’s paradox ....................................................................................................................................... 9 The evolution -
Orthoptera: Grylloidea, Phalangopsidae) from Remnant Patches of the Brazilian Atlantic Forest
420 July - August 2008 SYSTEMATICS, MORPHOLOGY AND PHYSIOLOGY A New Species of Laranda Walker 1869 (Orthoptera: Grylloidea, Phalangopsidae) from Remnant Patches of the Brazilian Atlantic Forest CARINA M. MEWS1, CRISTIANO LOPES-ANDRADE1 AND CARLOS F. SPERBER2 1Programa de Pós-Graduação em Entomologia, Depto. Biologia Animal, Univ. Federal de Viçosa 36570-000, Viçosa, MG; [email protected], [email protected] 2Lab. Orthopterologia, Depto. Biologia Geral, Univ. Federal de Viçosa, 36570-000, Viçosa, MG e-mail: [email protected]; corresponding author Neotropical Entomology 37(4):420-425 (2008) Uma Nova Espécie de Laranda Walker 1869 (Orthoptera: Grylloidea, Phalangopsidae) de Remanescentes da Mata Atlântica Brasileira RESUMO - O gênero Laranda possui seis espécies descritas e está confi nado ao Sul e Sudeste do Brasil. Neste trabalho é descrita uma nova espécie, e a biologia e a distribuição do gênero são discutidas. A nova espécie pode ser distinguida das demais espécies do gênero pelas seguintes características: ausência de manchas amarelas no pronoto e base das tíbias posteriores; papila copulatória da fêmea: esclerotização em vista dorsal formando ângulos agudos opostos e lobos apicais estreitos e pequenos; genitália do macho: processo mediano do pseudepifalo curto e largo; parâmero pseudepifálico com ápice curvado e dobra ectofálica ultrapassando o ápice dos parâmeros. O gênero se distribui dentro do bioma Mata Atlântica; a nova espécie é encontrada sobre troncos de árvores, bem como sobre serrapilheira fl orestal. PALAVRAS-CHAVE: Brasil, grilo, distribuição geográfi ca, ninfa ABSTRACT - The genus Laranda has six described species and is confi ned to South and Southeast of Brazil. We describe a new species and discuss the biology and distribution of the genus. -
Mitochondrial Genome Characterization of the Family Trigonidiidae
www.nature.com/scientificreports OPEN Mitochondrial genome characterization of the family Trigonidiidae (Orthoptera) reveals novel structural features and nad1 transcript ends Chuan Ma1,3, Yeying Wang2,3, Licui Zhang1 & Jianke Li1* The Trigonidiidae, a family of crickets, comprises 981 valid species with only one mitochondrial genome (mitogenome) sequenced to date. To explore mitogenome features of Trigonidiidae, six mitogenomes from its two subfamilies (Nemobiinae and Trigonidiinae) were determined. Two types of gene rearrangements involving a trnN-trnS1-trnE inversion and a trnV shufing were shared by Trigonidiidae. A long intergenic spacer was observed between trnQ and trnM in Trigonidiinae (210−369 bp) and Nemobiinae (80–216 bp), which was capable of forming extensive stem-loop secondary structures in Trigonidiinae but not in Nemobiinae. The anticodon of trnS1 was TCT in Trigonidiinae, rather than GCT in Nemobiinae and other related subfamilies. There was no overlap between nad4 and nad4l in Dianemobius, as opposed to a conserved 7-bp overlap commonly found in insects. Furthermore, combined comparative analysis and transcript verifcation revealed that nad1 transcripts ended with a U, corresponding to the T immediately preceding a conserved motif GAGAC in the superfamily Grylloidea, plus poly-A tails. The resultant UAA served as a stop codon for species lacking full stop codons upstream of the motif. Our fndings gain novel understanding of mitogenome structural diversity and provide insight into accurate mitogenome annotation. Te typical mitochondrial genome (mitogenome) of insects is a circular molecule ranging in size from 15 kb to 18 kb1. It harbors 37 genes including two ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and 13 protein-coding genes (PCGs). -
A Review on the Fascinating World of Insect Resources: Reason for Thoughts
Hindawi Publishing Corporation Psyche Volume 2010, Article ID 207570, 11 pages doi:10.1155/2010/207570 Review Article A Review on the Fascinating World of Insect Resources: Reason for Thoughts R. K. Lokeshwari and T. Shantibala Department of Biotechnology, Institute of Bioresources and Sustainable Development, Takyelpat, Imphal 795001, India Correspondence should be addressed to R. K. Lokeshwari, [email protected] Received 17 March 2010; Revised 20 May 2010; Accepted 10 June 2010 Academic Editor: Subba Reddy Palli Copyright © 2010 R. K. Lokeshwari and T. Shantibala. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Insect resources are vast and diverse due to their enormous diversity. The exploitation and utilization of insect resources is broadly classified into four different categories. The first category is the insects of industrial resources. This level includes the utilization of silk worm, honeybee, lac insect, dye insect, and aesthetic insect. The second category is the utilization of insects for edible and therapeutic purposes. Insects are high in protein and many are rich sources of vitamins and minerals. The third category is the use of insects in forensic investigation. By analyzing the stages of succession of insects at first, rough estimation of the postmortem intervals can be done. The fourth category is the insects of ecological importance. Many insect species act as potential predators and parasites of destructive pests of insect order Lepidoptera, Diptera, and Orthoptera. Insects are also used as bioindicator to assess the cumulative effects of environmental stressors such as pollutants. -
A New Record of Acrididae (Orthoptera) from Jharkhand, India
MANDAL: A new record of Acrididae....from Jharkhand, India ISSN 0375-1511603 Rec. zool. Surv. India : 114(Part-4) : 603-606, 2014 A NEW RECORD OF ACRIDIDAE (ORTHOPTERA) FROM JHARKHAND, INDIA G.P. MANDAL Zoological Survey of India, M-Block, New Alipore, Kolkata 700053 Email: [email protected]. INTRODUCTION survey conducted by the author in June-July, 2014, from Barkhela, Kolhan Forest Range, Jharkhand is a state in eastern India. Jharkhand Chaibasa district of Jharkhand. The order shares its border with the states of Bihar to the Orthoptera is divided into two suborders namely north, Uttar Pradesh and Chhattisgarh to the west, Caelifera and Ensifera. The suborder Caelifera Orissa to the south, and West Bengal to the east. includes short-horned grasshoppers, locusts and It is situated between 23.3500° N Latitude and grouse locusts, however Ensifera includes long- 85.3300° E Longitude. The Jharkhand state is horned grasshoppers, katydids, crickets and mole very rich in biodiversity and is the part of the crickets. The suborder Caelifera is represented by Chhotanagpur plateau, province of the peninsula 518 species under 214 genera and 11 families biogeographic zone. The recorded forest area is from India. Among Acrididae 285 species and 2.36 million hectares, which constitutes 29.61% of 134 genera were recorded from India (Kailash the geographical area of the state. Reserve forests Chandra et al., 2010). A notable taxonomical work constitute 18.59%, protected forests 81.27% and on Acrididae was made by Kirby (1914) in the unclassed forest a mere 0.14%. there are three series ‘Fauna of British India’ and he divided types of forest viz., Tropical moist deciduous, the family Acrididae into eight subfamilies.